From: Robert Klemme <shortcutter@...>
Date: 2010-06-11T15:25:06+09:00
Subject: Re: Option parsers that support single-dash words?

On 11.06.2010 07:40, Jos Backus wrote:

> In order to convert some legacy Perl code that uses Getopt::Long, I'm looking
> for an option parser that supports `-help' in addition to `--help'.  All the
> option parser libraries I have looked at only support the latter, and always
> do bundling, turning `-help' into `-h -e -l -p' which is not what I want.
>
> Any suggestions, please?

Drop your requirement.  Think about it: what you require is extremely 
hard to do.  How do you expect the option parsing to work reliably in 
light of ambiguity?  If for example -e is also a valid option then what 
do you make of this?  Since you likely also want to recognize -h you 
have the ambiguity built in right from the start.

Alternatively, you could preprocess the arguments and look for "-help" 
yourself e.g.

ARGV.map! {|arg| '-help' == arg ? '--help' : arg}

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/